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(METH)acrylic resin and method for controlling strain thereof

Inactive Publication Date: 2020-02-06
OSAKA ORGANIC CHEM INDS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a way to make polymers with specific strain and a method to make elastomers with the desired strain. Additionally, the invention provides a material that can displace a lot when a low voltage is applied, such as a (meth)acrylic dielectric material or an elastomer like a (meth)acrylic elastomer. This material can be used in actuators, sensors, power generating elements, speakers, microphones, noise cancellers, transducers, artificial muscles, small pumps, medical instruments, and other applications.

Problems solved by technology

However, the acryl rubber needs a high voltage to be applied to attain a large amount of displacement, so that there is a risk of electrical breakdown.

Method used

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  • (METH)acrylic resin and method for controlling strain thereof
  • (METH)acrylic resin and method for controlling strain thereof
  • (METH)acrylic resin and method for controlling strain thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

nt of Illuminance of Ultraviolet Ray Resulting in a Given Strain

[0445]Illuminance of an ultraviolet ray for producing a polymer with a given strain is determined by the following procedure.

[0446][Derivation of Relationship Between Strain-Illuminance]

[0447]1) Provision of Starting Material Monomer

[0448]A suitable monomer is selected for each specific example for Example 2 and Examples thereafter. For example, for the (meth)acrylic polymer in Example 2, a monomer component comprising a polymerization initiator is provided by mixing 7.03 g of ethyl acrylate, 0.17 g of diethylene glycol dimethacrylate, and 0.0042 g of 2,4,6-trimethylbenzoyl diphenylphosphine oxide [BASF, product name: Irgacure TPO] as the polymerization initiator.

[0449]2) Irradiation of Ultraviolet Ray with Specific Illuminance onto the Starting Material Monomer for Polymerization

[0450]Once an appropriate monomer component is obtained for each Example, an ultraviolet ray is irradiated thereon. For example, for Example 2...

example 2

[0463]Acryl Resin (1)

[0464]A monomer component comprising a polymerization initiator was obtained by mixing 7.03 g of ethyl acrylate, 0.17 g of diethylene glycol dimethacrylate, and 0.0042 g of 2,4,6-trimethylbenzoyl diphenylphosphine oxide [BASF, product name: Irgacure TPO] as the polymerization initiator.

[0465]A (meth)acrylic elastomer was obtained by injecting the resulting monomer component into a transparent glass mold with a release film (vertical: 100 mm, horizontal: 100 mm, depth: 0.3 mm), and then irradiating an ultraviolet ray on the monomer component so that the amount of irradiated rays was 0.5 to 50 mW / cm2 to subject the monomer component to bulk polymerization. The following Table 1 shows the measurement results.

example 3

[0466]Acryl Resin (2)

[0467]A monomer component comprising a polymerization initiator was obtained by mixing 30.01 g of ethyl acrylate, 0.35 g of 2-hydroxyethyl acrylate, and 0.038 g of 2,4,6-trimethylbenzoyl diphenylphosphine oxide [BASF, product name: Irgacure TPO] as the polymerization initiator.

[0468]A (meth)acrylic elastomer was obtained by injecting the resulting monomer component into a transparent glass mold with a release film (vertical: 100 mm, horizontal: 100 mm, depth: 2 mm), and then irradiating an ultraviolet ray on the monomer component so that the amount of irradiated rays was 0.5 to 50 mW / cm2 to subject the monomer component to bulk polymerization. The following Table 2 shows the measurement results.

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Abstract

The purpose of the present invention is to provide a method for manufacturing a polymer having a desired strain. Provided is a method for manufacturing a polymer having a desired strain, said method comprising: a step for polymerizing one or more kinds of starting monomers by irradiating with ultraviolet rays having such an illuminance as to generate the desired strain; and, if required, a step for measuring the strain of the polymers thus formed and selecting a polymer having the desired strain. In one embodiment, provided is a method for determining the illuminance of ultraviolet rays for manufacturing a polymer having a desired strain.

Description

TECHNICAL FIELD[0001]The present invention relates to an improved manufacturing method of resin (e.g., (meth)acrylic resin). More specifically, the present invention relates to a manufacturing method of resin (e.g., (meth)acrylic resin) with controlled strain by controlling illuminance of exposed light. The present invention relates to obtaining a resin with a low strain by exposure to light with low illuminance.[0002]The present invention also relates to materials with an adjusted strain, such as (meth)acrylic dielectric materials. The present invention also relates to materials, such as (meth)acrylic dielectric materials, that are expected to be used, for example, in an actuator, sensor used in an industrial robot or the like, power generating element, speaker, microphone, noise canceller, transducer, artificial muscle, small pump, medical instrument, or the like.BACKGROUND ART[0003](Meth)acrylic resins are used in various materials due to their high transparency / shock resistance,...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F290/06G01N3/08
CPCG01N2203/0067C08F2220/1808G01N3/08C08F290/067C08F220/18G01N2203/0017C08F20/00C08F290/06C08F220/1802C08F220/281C08F220/282G01N19/00C08F222/102C08F220/20C08F2/48C08F20/18C08F20/28C08F20/36C08F290/00C08G18/42C08G18/44C08G18/48C08F220/343
Inventor KOUDA, MITSUHIROKITANOHARA, MITSUKOTOMIMORI, YUYAMIYAZAWA, YU
Owner OSAKA ORGANIC CHEM INDS
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